iOS屏幕旋转相关

来源：互联网发布：办公软件学习编辑：程序博客网时间：2024/06/10 19:59

supportedInterfaceOrientations设备支持方向

- (NSUInteger)supportedInterfaceOrientations{    return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft;}preferredInterfaceOrientationForPresentation 方法提供的择优的方向取向

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{    return UIInterfaceOrientationLandscapeLeft;}

ios5
重写 shouldAutorotateToInterfaceOrientation：方法和指示您的视图支持哪个方向
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)orientation{   if ((orientation == UIInterfaceOrientationPortrait) ||       (orientation == UIInterfaceOrientationLandscapeLeft))      return YES;    return NO;}监听屏幕方向变化
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];    [[NSNotificationCenter defaultCenter] addObserver:self                                             selector:@selector(orientationChanged:)                                                 name:UIDeviceOrientationDidChangeNotification                                               object:nil];
//处理旋转之后的操作
- (void)orientationChanged:(NSNotification *)notification

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